Concept design method for car body frame

A body frame, conceptual design technology, applied in computing, mechanical equipment, special data processing applications, etc., can solve problems such as body structure defects

Inactive Publication Date: 2018-01-19
GUANGZHOU AUTOMOBILE GROUP CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a conceptual design method of the body frame to solve the existing partial or even global defects in the body structure of the

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  • Concept design method for car body frame
  • Concept design method for car body frame
  • Concept design method for car body frame

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[0054] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0055] Such as figure 1 As shown, a flowchart of a method for conceptual design of a vehicle body frame in a preferred embodiment of the present invention includes the steps:

[0056] S11, based on the internal design boundary and external design boundary of the car body frame, establish the envelope geometry model of the car body frame;

[0057] S12: Perform finite element meshing on the envelope geometry model of the car body frame to establish a finite element model of the car body frame;

[0058] S13: Process the working condition load of the finite element model of the body frame, and define the processed working condition load on the boundary of the finite element model of the body frame;

[0059] S14, according...

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Abstract

The invention relates to the technical field of car bodies, and discloses a concept design method for a car body frame. In a car body concept design stage, according to the internal design boundary and the external design boundary of the car body, the envelope geometric model of the car body frame is established, the finite element model of the car body frame is established according to the envelope geometric model of the car body frame, and finally, the topological optimization analysis model of the car body frame is established; the topological optimization analysis model of the car body frame is subjected to iterative solution to obtain the optimal load transferring path of the car body frame; and according to the optimal load transferring path of the car body frame, the concept model of the car body is finally created. Therefore, in the car body concept design stage, effective guidance is provided for the reasonable arrangement of the car body frame, so that local even global defects of the car body structure of a target car due to the past design experiences and the benchmarking design of an engineer can be avoided, and therefore, the design accuracy and the design efficiencyof the car body frame of the car are improved.

Description

technical field [0001] The invention relates to the technical field of automobile body design, in particular to a conceptual design method of a body frame. Background technique [0002] The static torque, bending stiffness and collision safety performance of the automobile body structure are the basic performances that need to be considered in the design of the automobile body. Comprehensive consideration of various load conditions to achieve a reasonable design of the load transfer path of the automobile body frame is an important aspect in the field of automobile body design. Difficulties and pain points. [0003] At present, the mainstream body concept design methods at home and abroad usually adopt the design idea of ​​"reference for benchmarking cars - digital model of the first version of structure - structural improvement". Due to the differences, the body structure of the target car based on the engineer's previous design experience and benchmarking design often has...

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Application Information

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IPC IPC(8): G06F17/50
CPCY02T10/40
Inventor 赵永宏汪芳胜张琪熊志华耿富荣陈东
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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